Generally, three things motivate people:
1. Autonomy - can they at least sometimes discover something on their own that needs doing/fixing and go ahead and do it without okaying it with management?
2. Mastery - can they devote enough time to new things (e.g. technology) to feel that they are learning something *and* spending enough time on it to lead to mastery?
3. Purpose - do they have a sense of belonging to something larger than themselves (as opposed to in name only: "there are six people in this group, therefore they are a team!")
These things drive most people and are completely lacking in my workplace. Search YouTube for "RSA Animate drive" for a better description than I gave.